diff --git a/src/ds3.c b/src/ds3.c
index 6639a934..1be37730 100644
--- a/src/ds3.c
+++ b/src/ds3.c
@@ -1218,7 +1218,6 @@ void ds3_tape_partition_response_free(ds3_tape_partition_response* response) {
     ds3_str_free(response->id);
     ds3_str_free(response->library_id);
     ds3_str_free(response->name);
-    ds3_str_free(response->serial_id);
     ds3_str_free(response->serial_number);
 
     g_free(response);
@@ -1680,7 +1679,6 @@ void ds3_detailed_tape_partition_response_free(ds3_detailed_tape_partition_respo
     ds3_str_free(response->id);
     ds3_str_free(response->library_id);
     ds3_str_free(response->name);
-    ds3_str_free(response->serial_id);
     ds3_str_free(response->serial_number);
     for (index = 0; index < response->num_tape_types; index++) {
         ds3_str_free(response->tape_types[index]);
@@ -1781,7 +1779,6 @@ void ds3_named_detailed_tape_partition_response_free(ds3_named_detailed_tape_par
     ds3_str_free(response->id);
     ds3_str_free(response->library_id);
     ds3_str_free(response->name);
-    ds3_str_free(response->serial_id);
     ds3_str_free(response->serial_number);
     for (index = 0; index < response->num_tape_types; index++) {
         ds3_str_free(response->tape_types[index]);
diff --git a/src/ds3.h b/src/ds3.h
index e1784701..6cd20378 100644
--- a/src/ds3.h
+++ b/src/ds3.h
@@ -1239,7 +1239,6 @@ typedef struct {
     int minimum_write_reserved_drives;
     ds3_str* name;
     ds3_quiesced quiesced;
-    ds3_str* serial_id;
     ds3_str* serial_number;
     ds3_tape_partition_state state;
 }ds3_tape_partition_response;
@@ -1516,7 +1515,6 @@ typedef struct {
     int minimum_write_reserved_drives;
     ds3_str* name;
     ds3_quiesced quiesced;
-    ds3_str* serial_id;
     ds3_str* serial_number;
     ds3_tape_partition_state state;
     ds3_str** tape_types;
@@ -1577,7 +1575,6 @@ typedef struct {
     int minimum_write_reserved_drives;
     ds3_str* name;
     ds3_quiesced quiesced;
-    ds3_str* serial_id;
     ds3_str* serial_number;
     ds3_tape_partition_state state;
     ds3_str** tape_types;
@@ -4588,6 +4585,7 @@ LIBRARY_API ds3_error* ds3_modify_tape_drive_spectra_s3_request(const ds3_client
  *   void ds3_request_set_minimum_read_reserved_drives(const ds3_request* request, const int value)
  *   void ds3_request_set_minimum_write_reserved_drives(const ds3_request* request, const int value)
  *   void ds3_request_set_quiesced_ds3_quiesced(const ds3_request* request, const ds3_quiesced value)
+ *   void ds3_request_set_serial_number(const ds3_request* request, const char * const value)
  */
 LIBRARY_API ds3_request* ds3_init_modify_tape_partition_spectra_s3_request(const char *const resource_id);
 LIBRARY_API ds3_error* ds3_modify_tape_partition_spectra_s3_request(const ds3_client* client, const ds3_request* request, ds3_tape_partition_response** response);
diff --git a/src/ds3_requests.c b/src/ds3_requests.c
index ba3732ad..c3245f66 100644
--- a/src/ds3_requests.c
+++ b/src/ds3_requests.c
@@ -4068,8 +4068,6 @@ static ds3_error* _parse_ds3_tape_partition_response(const ds3_client* client, c
             }
             response->quiesced = _match_ds3_quiesced(client->log, text);
             xmlFree(text);
-        } else if (element_equal(child_node, "SerialId")) {
-            response->serial_id = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "SerialNumber")) {
             response->serial_number = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "State")) {
@@ -5350,8 +5348,6 @@ static ds3_error* _parse_ds3_named_detailed_tape_partition_response(const ds3_cl
             }
             response->quiesced = _match_ds3_quiesced(client->log, text);
             xmlFree(text);
-        } else if (element_equal(child_node, "SerialId")) {
-            response->serial_id = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "SerialNumber")) {
             response->serial_number = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "State")) {
@@ -8795,8 +8791,6 @@ static ds3_error* _parse_top_level_ds3_tape_partition_response(const ds3_client*
             }
             response->quiesced = _match_ds3_quiesced(client->log, text);
             xmlFree(text);
-        } else if (element_equal(child_node, "SerialId")) {
-            response->serial_id = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "SerialNumber")) {
             response->serial_number = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "State")) {
@@ -9526,8 +9520,6 @@ static ds3_error* _parse_top_level_ds3_detailed_tape_partition_response(const ds
             }
             response->quiesced = _match_ds3_quiesced(client->log, text);
             xmlFree(text);
-        } else if (element_equal(child_node, "SerialId")) {
-            response->serial_id = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "SerialNumber")) {
             response->serial_number = xml_get_string(doc, child_node);
         } else if (element_equal(child_node, "State")) {